Groove-cleaner for rolling-mills.



F SCHERR, JR- & B. P. LU CE. GROOVE CLEANER FOR ROLLING MILLS.

APPLICATION FILED NOV. 9. I915- Patented Jan. 9,1917.

INVENTORJ f1? 6/76/11/2 5. PL ace WITNESSES A TTORNEYS rnvrr FREDERICKSOI-IERR, JR., AND BYRON P. LUCE, OF FAJ'ARDO, PORTO RICO.

GROOVE-CLEANER FOR BIDLLING-MIL'LS.

Application filed November 9, 1915.

To all whom it may concern:

Be it known that we, FREDERICK SOHERR, Jr., and BYRON P. Loon, citizensof the United States, and residents of Fajardo, Porto Rico, haveinvented a new and Improved Groove-Cleaner for Rolling-Mills, of whichthe following is a full, clear, and exact description.

Our invention relates to groove cleaners for the grooved rolls of arolling mill, and is primarily intended as a cleaner for the grooves ofthe rolls of a sugar-cane mill. Sugar-cane mill rolls having deepcircular grooves have to be cleaned continually, otherwise the grooveswill very quickly fill up with bagasse and become useless. Heretoforesaid grooved rolls were cleaned by a series of steel teeth or scrapersentering the grooves, the cleaning edge of said scrapers forming anangle of about 90 with the tangent to the roll, said scrapers beingrigidly mounted on a crossbar extending parallel to the roll. The resultwas that the bagasse would accumulate at the ends of 1 the scrapers andjam itself into the clearance between the scraper and the sides of thegrooves, gradually producing such strains as to break the scrapers orbend and even break the crossbar. This not only causes considerableexpense and loss of time, but the whole contrivance acted as a powerfulbrake on the circumference of the rolls, absorbing considerable power,which was an absolute loss.

To obviate the above defects we have designed a cleaner which is simple,easily installed, interchangeable and easily and quickly adjusted forany slight variation that may occur in the distance between the groovesof the various rolls.

With the above objects in view, the nature of which will more fullyappear as the description proceeds, the invention consists in the novelconstruction, combination and arrangement of parts as herein fullydescribed, illustrated and claimed.

In the accompanying drawings, forming part of the application, similarcharacters of reference indicate corresponding parts in all the views.

Figure 1 is a fragmentary cross section through the roll of a millprovided with our cleaner; Fig. 2 is a fragmentary side elevation of therolling-mill frame, showing a grooved roll with the cleanerstherespecification of Letters Patent.

Patented J an. 9, 1917.

Serial No. 60,535.

for; and Fig. 3 is a cross section of the blade of the cleaner on line3-3, Fig. 1.

7 Referring to the drawings, 3 represents a grooved roll of a sugar-canemill, the spaced grooves 1 of which receive a blade 5 the stem 6 ofwhich engages the socket of a bracket 7. The blade is clamped in placeon the socket by a set screw 8. The bracket is in turn clamped on atubular shaft or crossbar 9 extending parallel to the grooved roll 3. Aclamp 10, forming part of the bracket, grips the shaft 9 and permits therotation of the bracket on the shaft and also the longitudinaldisplacement thereof upon said shaft. The shaft 9 is prevented fromturning by bearings 11 which clamp the shaft to the frame of the mill.

The blade is preferably triangular in contour and it is so designed asto present two edges thereof tangent to the bottom of the groove at twodifferent points of the circumference. The edge 13 is the cleaning edgeand is maintained substantially tangent to the bottom of the groove at apoint ahead of the edge 15, which is the contacting or supporting edgeof the blade. The contacting edge 15 facilitates the setting of theblade relative to the groove of the roll which forms a support for theblade at the working end thereof by the engagement of the edge 15 withthe bottom of the groove, thereby eliminating any strain tending to bendor break the blade or the means securing it. Due to thedesign of theblade, so that the two edges thereof, 13 and 15, aresubstantiallytangent to the bottom of the groove at different points, the end 12,formed by the intersection of the said edges, is ahead of the point ofcontact of the edge 15 with the bottom of the groove, thus eliminatingall possibility of the blade digging into the roll, for the bagassenever reaches the bottom of the groove in one revolution of the roll.

The adjustability of the brackets? on the shaft 9 allows the necessarycompensation for the variation in distance between the grooves ordifierent rolls. The wear of the blade is taken up by the adjustment ofthe blade within the bracket.

We claim:

1. The combination with the grooved roll of a mill of cleaning means forthe grooves, comprising a triangular-shaped blade for each groove andmeans for presenting two edges of the blade tangentially to the bottomofthe groove at difierent points.

2. The combination with the grooved roll of a mill of cleaning means forthe grooves, comprising a trlangular-shaped blade for each groove, saidblade having a cleaning edgeand a contacting edge, means for maintainingthe contacting edge in engagement with the bottom of the groove, saidcleaning edge being so related to the contactlng edge that the same isin a substantially tangential direction with the bottomof the groove.

3. Thecombination with the grooved roll of a mill of cleaning means forthe grooves, comprising a blade for each groove, said blade havmg acontacting edge and a cleaning edge, and means for maintaining thecontacting edge against the bottom of a 1 groove, the apex formed-by thecleaning and contacting edges o'f-the blade adapted to be disposed aheadof the radius joining, the center ofthe roll andthe point of conbracketshaving clamping means foradjustably securing said brackets on to thebar, each bracket being adapted to maintain one edge of the blade incontact with the bottom of the groove, another edge of the bladebeingtange'ntial to the bottom of the groove.

5. The combination with the grooved roll of a mill of cleaning means forthe grooves, comprising a triangular-shaped blade for each. groove, eachof said blades having a stem extending from one of the apexes, each ofthe blades having a contacting and a cleaning edge, the apex formed bysaid edges being the attacking end of the blade, a bracket for eachblade having a socket in which the stem is adapted to slide and turn,means for securing the stem to the socket, and a tubular bar adapted toextend parallelly to the roll for supporting the brackets, each of thebrackets having clamping means for securing the bracket to the bar andwhereby the socket of the bracket can be adjusted laterally andtransverselyof the bar, each bracketbeing adapted to maintain thecontacting edge of the blade against the bottom of the groove, thecleaning edge of the blade being so related to the contacting edge thatthe same is substantially tangen tial to the bottom of the groovewhen'the contacting edge of the blade is in engagement with the bottomof the groove.

' 6. As an article of manufacture, a triangular-shaped blade forcleaning circular grooves, said blade having an edge for en gaging thebottom or a groove and an edge to be disposed tangentially to the bottomof the groove when the first-mentioned edge is in contact with thebottom of the groove, the cross section of the blade increasing from thefirst-mentioned edge toward the second, said blade having a stem forsecuring the blade.

7. As an article of. manufacture, a cleaning blade for grooved rollsadapted to present two edges substantially tangential to the bottom of agroove at different points thereof, one of said edges being adapted toengage the bottom of the groove when pressure is applied to the other ofsaid edges.

In testimony whereof we have signed our names to this specification 1nthe presence of two subscribing witnesses.

FREDERICK SCHERR, JR. BYRON P. LUCE. Witnesses ART UR L. HIBLERY, L 1).CRossMAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, 110.

